classdef DevSuperClass
    properties
        z = 20
    end

    properties (Dependent)
        computed
    end

    methods
        function v = get.computed(obj)
            obj
            v = obj.z * 10;
        end

        function y = my_test3(obj, z)
            '调用 my_test3 方法'
            y = 10;
        end
    end
end